from typing import List, Optional
from fastapi import APIRouter, Depends, HTTPException, Query
from api.dependency import get_idea_service, get_current_user, get_project_id, get_generation_service
from api.service.idea_service import IdeaService
from api.service.generation_service import GenerationService
from models.Idea import Idea
from api.models.GenerationRequest import GenerationResponse

router = APIRouter(prefix="/ideas", tags=["ideas"])

@router.post("", response_model=Idea)
async def create_idea(
    name: str,
    project_id: str = Depends(get_project_id),
    current_user: dict = Depends(get_current_user),
    idea_service: IdeaService = Depends(get_idea_service)
):
    if not project_id:
        raise HTTPException(status_code=400, detail="Project ID header is required")
    
    return await idea_service.create_idea(name, project_id, str(current_user["_id"]))

@router.get("", response_model=List[Idea])
async def get_ideas(
    project_id: str = Depends(get_project_id),
    limit: int = 20,
    offset: int = 0,
    idea_service: IdeaService = Depends(get_idea_service)
):
    if not project_id:
        raise HTTPException(status_code=400, detail="Project ID header is required")
    return await idea_service.get_ideas(project_id, limit, offset)

@router.get("/{idea_id}", response_model=Idea)
async def get_idea(
    idea_id: str,
    idea_service: IdeaService = Depends(get_idea_service)
):
    idea = await idea_service.get_idea(idea_id)
    if not idea:
        raise HTTPException(status_code=404, detail="Idea not found")
    return idea

@router.delete("/{idea_id}")
async def delete_idea(
    idea_id: str,
    idea_service: IdeaService = Depends(get_idea_service)
):
    success = await idea_service.delete_idea(idea_id)
    if not success:
        raise HTTPException(status_code=404, detail="Idea not found or could not be deleted")
    return {"status": "success"}

@router.get("/{idea_id}/generations", response_model=List[GenerationResponse])
async def get_idea_generations(
    idea_id: str,
    limit: int = 50,
    offset: int = 0,
    generation_service: GenerationService = Depends(get_generation_service)
):
    return await generation_service.get_generations(idea_id=idea_id, limit=limit, offset=offset)